摘要:本文研究应用了基于VR的BIM数模分离技术、基于物理的动态渲染技术、基于Unity二次开发技术并通过虚拟现实引擎开发完成基于BIM建筑VR交互系统。同时研究主动式3D分时显示技术，形成一套轻便、多人观看的VR展示方案。在上海市轨道交通运营指挥大楼项目的应用验证表明，本研究提供的方法可加快现场装饰深化设计方案的制定，减少施工样板房的返工次数，并支持在项目深化设计过程中的应用。在建筑可视化领域具有推广价值。

Abstract: This paper studies the BIM digital module separation technology based on VR, the dynamic rendering technology based on physics, the secondary development technology based on Unity, and the development of BIM architecture VR interactive system based on the virtual reality engine. At the same time, the active 3D time-sharing display technology is researched to form a light and multiplayer VR display scheme. The application in the project of Shanghai Rail Transit Operation Command Building shows that, the method provided in this study is able to accelerate the design of the scene decoration deepening plan, to reduce the number of rework of the model room, and to support the application in the project deepening design process. It is of great promotion value in the field of architectural visualization.